19887586

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{223}}^1$

素因数の和:346

約数の個数: 32

約数和(自身を含む): 32997888

約数和(自身を除く): 13110302

約数列:

[1, 2, 17, 34, 43, 61, 86, 122, 223, 446, 731, 1037, 1462, 2074, 2623, 3791, 5246, 7582, 9589, 13603, 19178, 27206, 44591, 89182, 163013, 231251, 326026, 462502, 584929, 1169858, 9943793, 19887586]

約数ペア:

[(1, 19887586), (2, 9943793), (17, 1169858), (34, 584929), (43, 462502), (61, 326026), (86, 231251), (122, 163013), (223, 89182), (446, 44591), (731, 27206), (1037, 19178), (1462, 13603), (2074, 9589), (2623, 7582), (3791, 5246)]